2007MNRAS.377..491B


Query : 2007MNRAS.377..491B

2007MNRAS.377..491B - Mon. Not. R. Astron. Soc., 377, 491-506 (2007/May-2)

A search for 22-GHz water masers within the giant molecular cloud associated with RCW 106.

BREEN S.L., ELLINGSEN S.P., JOHNSTON-HOLLITT M., WOTHERSPOON S., BAINS I., BURTON M.G., CUNNINGHAM M., LO N., SENKBEIL C.E. and WONG T.

Abstract (from CDS):

We report the results of a blind search for 22-GHz water masers in two regions, covering approximately half a square degree, within the giant molecular cloud associated with RCW 106. The complete search of the two regions was carried out with the 26-m Mount Pleasant radio telescope and resulted in the detection of nine water masers, five of which are new detections. Australia Telescope Compact Array (ATCA) observations of these detections have allowed us to obtain positions with arcsecond accuracy, allowing meaningful comparison with infrared and molecular data for the region. We find that for the regions surveyed there are more water masers than either 6.7-GHz methanol, or main-line OH masers. The water masers are concentrated towards the central axis of the star formation region, in contrast to the 6.7-GHz methanol masers which tend to be located near the periphery. The colours of the GLIMPSE point sources associated with the water masers are similar to those of 6.7-GHz methanol masers, but slightly less red. We have made a statistical investigation of the properties of the 13CO and 1.2-mm dust clumps with and without associated water masers. We find that the water masers are associated with the more massive, denser and brighter 13CO and 1.2-mm dust clumps. We present statistical models that are able to predict those 13CO and 1.2-mm dust clumps that are likely to have associated water masers, with a low misclassification rate.

Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): masers - ISM: molecules - radio lines: general - stars: formation

Nomenclature: Table 1: [BEJ2007] N (Nos 1-9).

Simbad objects: 37

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Number of rows : 37
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 3C 279 Bla 12 56 11.1664521013 -05 47 21.531840471   18.01 17.75 15.87   ~ 2810 2
2 3FGL J1617.4-5846 AGN 16 17 17.8913859288 -58 48 07.860059063   18.23       ~ 107 1
3 Caswell H2O 332.65-00.63 Mas 16 19 44.0 -51 04 00           ~ 5 0
4 GAL 332.66-00.61 bub 16 19 45.3 -51 02 48           ~ 37 0
5 GAL 332.80-00.60 HII 16 19 47 -51 04.1           ~ 92 1
6 MMB G333.234-00.060 Mas 16 19 50.89 -50 15 10.7           ~ 12 0
7 RCW 106B HII 16 20 -50.9           ~ 4 0
8 Caswell OH 332.824-00.548 Mas 16 20 10.23 -50 53 18.0           ~ 3 0
9 [MHL2007] G332.8256-00.5498 1 HII 16 20 11.184 -50 53 17.52           ~ 10 0
10 [BE83] Maser 332.83-00.55 Mas 16 20 11.5 -50 52 55           ~ 5 0
11 [BWC2006] 13CO 2 PoC 16 20 12.0 -50 53 27           ~ 1 0
12 IRAS 16164-5046 HII 16 20 14.1 -50 53 20           ~ 27 0
13 [BWC2006] 13CO 22 PoC 16 20 30.0 -50 41 03           ~ 1 0
14 [BWC2006] 13CO 7 PoC 16 20 50.0 -50 38 51           ~ 1 0
15 SSTGLMC G333.0600-00.4888 MIR 16 20 58.002 -50 40 46.32           ~ 1 0
16 MMB G333.121-00.434 Mas 16 20 59.66 -50 35 51.9           ~ 7 0
17 Caswell H2O 333.13-00.43 Mas 16 20 59.8 -50 35 25           ~ 6 0
18 NAME RCW 106 GMC MoC 16 21.0 -50 30           ~ 36 0
19 IRAS 16172-5028 HII 16 21 00.4 -50 35 21           ~ 35 0
20 IRAS 16174-5022 IR 16 21 13.3 -50 30 05           ~ 4 0
21 2MASS J16211775-5030171 * 16 21 17.7532431633 -50 30 16.992177600           ~ 1 0
22 [BWC2006] 13CO 14 PoC 16 21 19.0 -50 30 27           ~ 1 0
23 [BWC2006] 13CO 5 PoC 16 21 21.0 -50 09 51           ~ 1 0
24 SSTGLMC G333.3639-00.3574 MIR 16 21 30.4 -50 26 34           ~ 1 0
25 IRAS 16177-5018 HII 16 21 31.4 -50 25 04           ~ 31 0
26 GAL 333.3-00.4 HII 16 21 31.7 -50 26 23           ~ 19 0
27 MSX5C G333.2898-00.3898 MIR 16 21 33.2 -50 26 51           ~ 2 0
28 [BWC2006] 13CO 9 PoC 16 21 37.0 -50 41 15           ~ 1 0
29 SSTGLMC G333.4285-00.3809 MIR 16 21 44.319 -50 22 21.08           ~ 1 0
30 IRAS 16183-4958 IR 16 22 09.0 -50 06 00           ~ 16 0
31 GAL 333.6-00.2 HII 16 22 11 -50 05.6           ~ 143 0
32 [BWC2006] 13CO 1 PoC 16 22 11.0 -50 06 15           ~ 1 0
33 OH 333.6 -0.2 Mas 16 22 11.042 -50 05 56.25           ~ 20 0
34 PMN J1622-5051 Rad 16 22 21.9 -50 51 11           ~ 4 0
35 NAME Sgr B2 MoC 17 47 20.4 -28 23 07           ~ 2032 1
36 W 49 SFR 19 10 20 +09 07.7           ~ 529 1
37 ICRF J193925.0-634245 Sy2 19 39 25.02671 -63 42 45.6255   18.87 18.37 17.64   ~ 1037 1

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2021.09.17-18:47:02

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